CN211074524U - Selenium drum box body injection mold - Google Patents

Abstract

The utility model provides a selenium drum box body injection mold, include: a front die holder, a sprue bush and a front template; a front template is arranged at the bottom of the front die holder and is connected with the front die holder in a bolt fixing mode; a sprue bush is fixedly embedded in the middle of the front die holder, and the bottom of the sprue bush is embedded in the upper part of the front template; the bottom end of the sprue bush downwards penetrates through the front template to the position below the front template; and four positioning guide columns in a rectangular array are fixedly embedded around the front die holder and penetrate through the front die plate downwards through the positioning guide sleeves. The utility model discloses a to selenium drum box body injection mold's improvement, it is little to have injection pressure loss, and the time of moulding plastics is few, and work efficiency is high, and injects more even, improves the surface quality behind the shaping of selenium drum box body, reduces advantages such as production of waste product to effectual problem and the not enough that appear in having solved current device.

Description

Selenium drum box body injection mold

Technical Field

The utility model relates to a selenium drum technical field, more specifically the theory that says so especially relates to a selenium drum box body injection mold.

Background

The common toner cartridge is generally composed of a drum core, a magnetic roller, a powder bin, a waste powder bin, a cleaning scraper, a conducting rod, a charging roller and other structures, wherein the waste powder bin is also called a waste powder box and is a warehouse for containing waste powder, and the waste powder box is mostly shell-shaped plastic products and is mostly processed and manufactured through an injection mold.

For the production efficiency who improves the selenium drum box body, a mould for waste powder storehouse box body is moulded plastics is a mould multicavity mostly, and current waste powder storehouse box body injection mold's runner sets up unreasonablely with some runner, and injection pressure loss is great, is unfavorable for moulding a shaping, and injects inhomogeneously, and box body injection moulding back, and most surface quality is relatively poor, and glossiness and definition are relatively poor, and the rejection rate is higher.

In view of this, research and improvement are carried out to solve the existing problems, and an injection mold for a cartridge body of a toner cartridge is provided, which aims to achieve the purposes of solving the problems and improving the practical value through the technology.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a selenium drum box body injection mold to the runner of the current waste powder storehouse box body injection mold who provides in solving the background art sets up unreasonablely with the point gate, and injection pressure loss is great, is unfavorable for moulding a shaping, and injects inhomogeneously, and box body injection moulding back, and most surface quality is relatively poor, and glossiness and definition are relatively poor, the higher problem of rejection rate and not enough.

In order to achieve the above object, the utility model provides a selenium drum box body injection mold reaches by following specific technological means:

a selenium drum box body injection mold comprises: the device comprises a front die holder, a sprue bush, a front die plate, a positioning guide pillar, a front die holder, a front die core, a rear die holder, square iron, a fixing plate, a thimble guide rod, a thimble, a rear die holder, a rear die core, a positioning guide sleeve, a runner insert, a runner, a spot sprue, an inclined guide pillar, a thimble fixing plate guide rod, a thimble guide sleeve, a slide matching groove and a core-pulling block; a front template is arranged at the bottom of the front die holder and is connected with the front die holder in a bolt fixing mode; a sprue bush is fixedly embedded in the middle of the front die holder, and the bottom of the sprue bush is embedded in the upper part of the front template; the bottom end of the sprue bush downwards penetrates through the front template to the position below the front template; positioning guide pillars in a rectangular array are fixedly embedded around the front die holder and penetrate through the front die plate downwards through the positioning guide sleeves; the bottom of the front template is fixed with a front die carrier through bolts, and a positioning guide pillar downwards penetrates through the front die carrier through a positioning guide sleeve; a runner insert is embedded in the top of the front mould frame, and a runner is arranged on the upper part of the runner insert; the middle part of the runner corresponds to the sprue bush up and down; a point gate is arranged at the upper part of the front mould frame and communicated with the flow channel; the bottom of the front mould frame is fixed with a front mould core in a linear array at four positions through bolts, and the point pouring gate vertically penetrates through the front mould core downwards; the bottom of the front die carrier is fixedly embedded with an inclined guide pillar, the inclined guide pillars are respectively arranged at the front side and the rear side of the front die core, and the inclined guide pillars are inclined towards the outer side of the front die carrier; the front side and the rear side of the top of the rear die holder are fixedly provided with square irons through bolts, and the top of each square iron is fixedly provided with a fixing plate through a bolt; a thimble fixing plate is arranged below the fixing plate, the thimble fixing plate is in sliding fit with the fixing plate through a thimble fixing plate guide rod, and the thimble fixing plate is accommodated in the inner sides of front square iron and rear square iron in a clearance fit mode; the ejector pin fixing plate guide rods are arranged at four positions in a rectangular array mode, and the bottom of each ejector pin fixing plate guide rod is embedded and fixed at the upper part of the ejector pin fixing plate; n thimbles are embedded and fixed on the upper part of the thimble fixing plate, and the thimbles upwards penetrate through the fixing plate in a clearance fit mode; four thimble guide rods in a rectangular array are embedded and fixed on the periphery of the fixing plate; the top of the fixed plate is fixed with a rear mould frame through a bolt, and the rear mould frame is in sliding fit with the thimble guide rod through the thimble guide sleeve; the thimble guide sleeve is embedded around the rear mould frame and is provided with four parts matched with the thimble guide rod; the top of the rear mould frame is fixed with rear mould kernels in a linear array at four positions through bolts, and the rear mould kernels correspond to the front mould kernel up and down; the top of the rear die frame is provided with a rectangular sliding groove, a core-pulling block is arranged inside the sliding groove in a sliding mode, and the core-pulling block is in sliding fit with the inclined guide post.

Preferably, the left side and the right side of the flow channel are both in an I shape, the middle part of the flow channel is in a straight shape, and the tail end of the flow channel is communicated with the point pouring gate.

Preferably, the spot gates are symmetrically arranged at two positions in front and back on the upper part of each front mold core.

Preferably, the front template, the front mould frame, the square iron, the thimble fixing plate and the rear mould frame are all embedded with positioning guide sleeves which are in sliding fit with the positioning guide pillars.

Preferably, the ejector pin penetrates through the rear die frame and the rear die core upwards in a transition fit mode.

Preferably, the slide groove is provided with one position on the front side and the rear side of the two rear mold cores on the left side and one position on the front side and the rear side of the two rear mold cores on the right side.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

1. the utility model discloses a left and right sides that sets up the runner all is the I shape form, and the middle part of runner is a word shape to the tail end of runner all sets up and is linked together with the point gate, is favorable to reducing injection pressure's loss, reduces the time of moulding plastics, improves work efficiency.

2. The utility model discloses an upper portion at every front mould benevolence is provided with two and is the symmetrical point runner around, makes injecting more even, improves the surface quality who moulds after the piece shaping, reduces the production of waste product.

3. The utility model discloses a to selenium drum box body injection mold's improvement, it is little to have injection pressure loss, and the time of moulding plastics is few, and work efficiency is high, and injects more even, improves the surface quality behind the shaping of selenium drum box body, reduces advantages such as production of waste product, thereby effectual solution the utility model discloses the problem that proposes in background art is with not enough.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of the local explosion structure of the present invention.

Fig. 3 is a schematic diagram of the local explosion structure of the present invention.

Fig. 4 is a schematic diagram of the local explosion structure of the present invention.

Fig. 5 is a schematic view of the front mold frame of the present invention.

Fig. 6 is a schematic diagram of the point a structure of the present invention.

Fig. 7 is a schematic view of the front mold frame of the present invention.

Fig. 8 is a schematic diagram of the point B structure of the present invention.

Fig. 9 is the schematic structural diagram of the cartridge body injection molding of the selenium drum of the present invention.

In the figure: the mould comprises a front mould base 1, a sprue bush 2, a front mould plate 3, a positioning guide post 4, a front mould base 5, a front mould core 6, a rear mould base 7, square iron 8, a fixing plate 9, an ejector pin guide rod 10, an ejector pin 11, a rear mould base 12, a rear mould core 13, a positioning guide sleeve 14, a runner insert 501, a runner 502, a point sprue 503, an inclined guide post 504, an ejector pin fixing plate 901, an ejector pin fixing plate guide rod 902, an ejector pin guide sleeve 1001, a slide fit groove 1201 and a core pulling block 1301.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

It is to be noted that, in the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Meanwhile, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or electrical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Please refer to fig. 1 to 9, the utility model provides a specific technical implementation scheme of a selenium drum box body injection mold:

a selenium drum box body injection mold comprises: the mould comprises a front mould base 1, a sprue bush 2, a front mould plate 3, a positioning guide post 4, a front mould base 5, a front mould core 6, a rear mould base 7, square iron 8, a fixing plate 9, an ejector pin guide rod 10, an ejector pin 11, a rear mould base 12, a rear mould core 13, a positioning guide sleeve 14, a runner insert 501, a runner 502, a point sprue 503, an inclined guide post 504, an ejector pin fixing plate 901, an ejector pin fixing plate guide rod 902, an ejector pin guide sleeve 1001, a slide fit groove 1201 and a core pulling block 1301; the bottom of the front die holder 1 is provided with a front template 3, and the front template 3 is connected with the front die holder 1 in a bolt fixing mode; a sprue bush 2 is fixedly embedded in the middle of the front die holder 1, and the bottom of the sprue bush 2 is embedded in the upper part of the front template 3; the bottom end of the sprue bush 2 downwards penetrates through the front template 3 to the position below the front template 3; four positioning guide pillars 4 in a rectangular array are embedded and fixed on the periphery of the front die holder 1, and the positioning guide pillars 4 downwards penetrate through the front die plate 3 through positioning guide sleeves 14; the bottom of the front template 3 is fixed with a front mould frame 5 through bolts, and the positioning guide post 4 downwards penetrates through the front mould frame 5 through a positioning guide sleeve 14; a runner insert 501 is embedded in the top of the front mold frame 5, and a runner 502 is arranged on the upper part of the runner insert 501; the middle part of the runner 502 corresponds to the sprue bush 2 up and down; a spot gate 503 is arranged at the upper part of the front mould frame 5, and the spot gate 503 is communicated with the runner 502; the bottom of the front mould frame 5 is fixed with a front mould core 6 which is in a linear array at four positions through bolts, and the point pouring gate 503 vertically penetrates through the front mould core 6 downwards; the bottom of the front mold frame 5 is fixedly embedded with an inclined guide post 504, the inclined guide posts 504 are respectively arranged at the front side and the rear side of the front mold core 6, and the inclined guide posts 504 are inclined towards the outer side of the front mold frame 5; the front side and the rear side of the top of the rear die holder 7 are fixedly provided with square irons 8 through bolts, and the top of each square iron 8 is fixedly provided with a fixing plate 9 through a bolt; a thimble fixing plate 901 is arranged below the fixing plate 9, the thimble fixing plate 901 is in sliding fit with the fixing plate 9 through a thimble fixing plate guide rod 902, and the thimble fixing plate 901 is accommodated inside the front and rear square irons 8 in a clearance fit manner; the thimble fixing plate guide rods 902 are arranged at four positions in a rectangular array mode, and the bottom of the thimble fixing plate guide rods 902 is embedded and fixed on the upper part of the thimble fixing plate 901; n thimbles 11 are embedded and fixed on the upper part of the thimble fixing plate 901, and the thimbles 11 upwards penetrate through the fixing plate 9 in a clearance fit manner; four thimble guide rods 10 in a rectangular array are embedded and fixed on the periphery of the fixing plate 9; a rear mold frame 12 is fixed at the top of the fixing plate 9 through bolts, and the rear mold frame 12 is in sliding fit with the ejector pin guide rod 10 through an ejector pin guide sleeve 1001; the thimble guide sleeve 1001 is embedded around the rear mold frame 12, and the thimble guide sleeve 1001 is provided with four parts matched with the thimble guide rod 10; the top of the rear mould frame 12 is fixed with rear mould cores 13 in a linear array at four positions through bolts, and the rear mould cores 13 correspond to the front mould core 6 up and down; the top of the rear mold frame 12 is provided with a rectangular sliding fit groove 1201, a core pulling block 1301 is slidably fitted inside the sliding fit groove 1201, and the core pulling block 1301 is slidably fitted with the inclined guide pillar 504.

Specifically, referring to fig. 5 and 6, the left side and the right side of the flow channel 502 are both in an i shape, the middle portion of the flow channel 502 is in a straight shape, and the tail end of the flow channel 502 is communicated with the dot gate 503, so that the connectivity is good, the number of bends is small, and the loss of injection pressure is effectively reduced.

Specifically, referring to fig. 7 and 8, the spot gates 503 are symmetrically disposed at two positions on the upper portion of each front mold core 6, so as to facilitate uniform injection.

Specifically, the front template 3, the front mold frame 5, the square iron 8, the thimble fixing plate 9 and the rear mold frame 12 are all embedded with positioning guide sleeves 14 which are in sliding fit with the positioning guide pillars 4 around and used for guiding during mold opening.

Specifically, the ejector pin 11 penetrates through the rear mold frame 12 and the rear mold core 13 upwards in a transition fit mode, and the ejector pin 11 is used for ejecting and demolding.

Specifically, the sliding fit groove 1201 is provided with one position on each of the front and rear sides of the two rear mold cores 13 on the left side and the front and rear sides of the two rear mold cores 13 on the right side, and when the core pulling block 1301 slides outwards in the sliding fit groove 1201, the plastic part core pulling is realized.

The method comprises the following specific implementation steps:

the left side and the right side of the flow channel 502 are both in an I shape, the middle part of the flow channel 502 is in a straight shape, and the tail end of the flow channel 502 is communicated with the spot gate 503, so that the loss of injection pressure is reduced, the injection molding time is reduced, and the injection molding efficiency of the selenium drum box body is improved; the front mold core 6 and the rear mold core 13 which are vertically corresponding are arranged at four positions, so that four mold cavities of one mold are realized, two point gates 503 which are symmetrical front and back are arranged at the upper part of each front mold core 6, the injection at two sides of a single mold cavity is realized, the injection of the single cavity is more uniform, the surface quality of a molded plastic part is improved, and the generation of waste products is reduced.

In summary, the following steps: according to the selenium drum box body injection mold, the left side and the right side of the flow channel are both in an I shape, the middle part of the flow channel is in a straight shape, and the tail end of the flow channel is communicated with the point pouring gate, so that the loss of injection pressure is reduced, the injection molding time is shortened, and the working efficiency is improved; the upper part of each front mold core is provided with two point gates which are symmetrical front and back, so that the injection is more uniform, the surface quality of the molded plastic part is improved, and the generation of waste products is reduced. The utility model discloses a to selenium drum box body injection mold's improvement, it is little to have injection pressure loss, and the time of moulding plastics is few, and work efficiency is high, and injects more even, improves the surface quality behind the shaping of selenium drum box body, reduces advantages such as production of waste product to effectual problem and the not enough that appear in having solved current device.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A selenium drum box body injection mold comprises: the die comprises a front die holder (1), a sprue bush (2), a front die plate (3), a positioning guide post (4), a front die holder (5), a front die core (6), a rear die holder (7), square iron (8), a fixing plate (9), an ejector pin guide rod (10), an ejector pin (11), a rear die holder (12), a rear die core (13), a positioning guide sleeve (14), a runner insert (501), a runner (502), a point sprue (503), an inclined guide post (504), an ejector pin fixing plate (901), an ejector pin fixing plate guide rod (902), an ejector pin guide sleeve (1001), a sliding fit groove (1201) and a core pulling block (1301); the method is characterized in that: a front template (3) is arranged at the bottom of the front die holder (1), and the front template (3) is connected with the front die holder (1) in a bolt fixing mode; a sprue bush (2) is fixedly embedded in the middle of the front die holder (1), and the bottom of the sprue bush (2) is embedded in the upper part of the front die plate (3); the bottom end of the sprue bush (2) downwards penetrates through the front template (3) to the position below the front template (3); four positioning guide posts (4) in a rectangular array are embedded and fixed on the periphery of the front die holder (1), and the positioning guide posts (4) downwards penetrate through the front die plate (3) through positioning guide sleeves (14); the bottom of the front template (3) is fixed with a front mould frame (5) through bolts, and the positioning guide pillar (4) penetrates through the front mould frame (5) downwards through a positioning guide sleeve (14); a runner insert (501) is embedded in the top of the front mould frame (5), and a runner (502) is formed in the upper part of the runner insert (501); the middle part of the runner (502) corresponds to the sprue bush (2) up and down; a point sprue (503) is formed in the upper part of the front mould frame (5), and the point sprue (503) is communicated with the runner (502); the bottom of the front mould frame (5) is fixed with a front mould core (6) in a linear array at four positions through bolts, and a spot pouring gate (503) vertically penetrates through the front mould core (6) downwards; an inclined guide post (504) is fixedly embedded in the bottom of the front mould frame (5), the inclined guide posts (504) are respectively arranged at the front side and the rear side of the front mould core (6), and the inclined guide posts (504) are inclined towards the outer side of the front mould frame (5); the front side and the rear side of the top of the rear die holder (7) are fixedly provided with square irons (8) through bolts, and the top of each square iron (8) is fixedly provided with a fixing plate (9) through a bolt; a thimble fixing plate (901) is arranged below the fixing plate (9), the thimble fixing plate (901) is in sliding fit with the fixing plate (9) through a thimble fixing plate guide rod (902), and the thimble fixing plate (901) is accommodated inside front and rear square irons (8) in a clearance fit manner; the thimble fixing plate guide rods (902) are arranged at four positions in a rectangular array mode, and the bottoms of the thimble fixing plate guide rods (902) are embedded and fixed on the upper part of the thimble fixing plate (901); n thimbles (11) are embedded and fixed on the upper part of the thimble fixing plate (901), and the thimbles (11) upwards penetrate through the fixing plate (9) in a clearance fit mode; thimble guide rods (10) in a rectangular array are embedded and fixed at four positions on the periphery of the fixing plate (9); the top of the fixed plate (9) is fixed with a rear mould frame (12) through a bolt, and the rear mould frame (12) is in sliding fit with the thimble guide rod (10) through a thimble guide sleeve (1001); the thimble guide sleeve (1001) is embedded around the rear mould base (12), and the thimble guide sleeve (1001) is provided with four parts matched with the thimble guide rod (10); the top of the rear mould frame (12) is fixed with rear mould cores (13) in a linear array at four positions through bolts, and the rear mould cores (13) are vertically corresponding to the front mould core (6); the top of the rear die carrier (12) is provided with a rectangular sliding fit groove (1201), a core-pulling block (1301) is arranged inside the sliding fit groove (1201) in a sliding fit mode, and the core-pulling block (1301) is in sliding fit with the inclined guide post (504).

2. The cartridge body injection mold for the cartridge of claim 1, wherein: the left side and the right side of the flow channel (502) are both in an I shape, the middle part of the flow channel (502) is in a straight shape, and the tail end of the flow channel (502) is communicated with the spot gate (503).

3. The cartridge body injection mold for the cartridge of claim 1, wherein: the point gates (503) are symmetrically arranged at two positions in front and back on the upper part of each front mold core (6).

4. The cartridge body injection mold for the cartridge of claim 1, wherein: the front template (3), the front mould frame (5), the square iron (8), the thimble fixing plate (9) and the rear mould frame (12) are all embedded with positioning guide sleeves (14) which are in sliding fit with the positioning guide columns (4).

5. The cartridge body injection mold for the cartridge of claim 1, wherein: the ejector pin (11) upwards penetrates through the rear mould frame (12) and the rear mould core (13) in a transition fit mode.

6. The cartridge body injection mold for the cartridge of claim 1, wherein: the slide groove (1201) is respectively provided with one position on the front side and the rear side of the two rear mold cores (13) on the left side and one position on the front side and the rear side of the two rear mold cores (13) on the right side.

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